Card grinder



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BOZIL S. ROY, OF LOWELL, MASSACHUSETTS, ASSIGNOR T() IIIMSELF AND HENRY S. ll'IORSE, OF SAME PLACE. i

Lettere Patent No. 81,213,"6Zalted At'tgust 18, 1868.

IMPROVEMENT `IN GARD-GRINDER.

To ALL` wHoM 1T MAY concerns:

Be it known that-I, BOZIL S. ROY, a native of St. Phillip, in the Province of Lower Canada, or 'Canada East,

but at present, and for the whole of four years last past,-resid ing in Lowell, in the county of -Middlesex, and

State of Massachusetts, and for seventeen years in the United States, and having onthe eighth day of June,

1868, declared my intention to become a citizen of the United States, have invented certain new anduseful Improvements in Card-Grinders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l represents a plan or top view,`partly in section. i i

Figure 2, an end elevation.

Figure 3, a central longitudinal section of the shaft D, on which the grinding-wheel traverses, the operatingchain, A, arranged and connected with said wheel and shaft, and the connecting-device or link F and stationary gear H, from which thepower amd the traverse motion are obtained by 'the rotary motion o'f said shaft.

Figure 4 represents a transverse section on the/line A B, fig. 3. i

Figure 5,.an end View, opposite to that shown in iig. 2, but considerably enlarged.

Figure 6, an end view of the grinding-wheel.

Figure 7, 'an end view of the shaft D.

This invention consists in the employment o'f an endless chain', A, arranged on chain-wheels B and C, enclosed within the shaft D, said chain being connected with the grinding-wheel E by a. connecting-device o'r link, F, and operated by a. bevel-gear, G, which rotates withthe shaft D, and gears into a stationary gear, H, secured tothe end of the frame or toa stand, I, which may form the support for one end of thev shaft D.

The bevel-gear G is secured'to one end of a radial shaft, a, and the chain-wheel Bis secured yto the other endof the-same shaft, and when the shaft D and the grinding-wheelE rotate, the bevel-gear Gr and chain-wheel B not only rotate with, the shaft, but have an independent rotary motionwith their radial axis a, which passes through one side of the shaft D, at a right angle therewith, as more clearly shown in the section in fig. I, at the geared end of the shaft.

Rotary motion of the gear G and the chain-wheelB operates the endless c hain around the wheels B and C, and by means of the connecting-link F, the grinder-wheel is made to traverse from end to end of the Shaft l D, so long as the said shaft and the wheel E continue to rotate. l i

The connecting-link F is pivoted to tho lendless chain and to the hub of the grinding-wheel. v

The hub of this grinding-wheel has a-slot, c, formed in one side of. it, Asuteiently deepto' allow the link Fv to spring back and accommodate itself to the movements of the chain, the end ofithe link which is pivoted to the latter passing around both chain-wheels, and longitudinally with the shaft D,"on'either part-of the chain, to traverse the grinding-wheel the whole length of said shaft, and the link F, pivoted tothehub of the grindingwheel in the slot c, serves the purpose of a spline or key, to prevent the wheel turning'on the shaft, but allows an easy traverse ofthe wheel. i

The shaft D is made in two parts, Jand K, being divided longitudinally and near the centre, and between the two parts of this shaft is a spaee,e, vextending from the geared end to the curved shoulder fr, and opening through one side to allow the link F traversing-room the whole length of the shaft.

One part, J, of the shaft D is recessed, as shownv in figs; 3 and 4, to receive the chain and the chain-wheels, and between the two latter is a central guide, L, to keep the two parts of the ehainin place.

In fig. 'i is seen an cnd view of the shaft D, and at this end is a semicircular bridge, 1t, which is connected with the portion J of the shaft, and the portion K of thc same is fitted within this bridge, 'which holds (at this end) the two parts together. The opposite ends of the two parts J and Ii are securedtogetherby a screw,

Y 'which passes through one part at z and screws into the other.

Power and motion are applied tcrotatc'thc shaft D and the grinding-wheel by a belt or band, M, running from apulley, N, on the end of a lower rotating shaft into a pulley, P, or one-end of the shaft D.

In grinding thevteetlng, of small card-cylinders, R, which are shown in section in fig. 1, such card-cylinders are placed in stands at each side o f the shaft D and the grinding-wheel, and operated in the usual way, while the grinding-wheel rotates and traverses between them. The grinding-wheel is intended to traverse beyond the ends of the card-cylinders, so,that no more grinding shall be performed on the'card-teetll at one part or portion of either4 cylinder than any other part, but all parts shall be ground equally..

The stands I are nade movable, and niay be taken off from the frame-girts T, and placed and securedon the frame of the carding-machine, to grindktbe teeth of the-main cylinder` which jsal'wpys ground without removing it from the bearings in which it operate'sf' The employment of the endlessy chairLA, the link v1?," and other connecting and operating'parts renders this avery cheap, simple, and eHcient card-grinder, easily operatech'andinot liable to get out of order.

What I claim, and desire to secure by Letters Patenti, is

The endless chain-A and wheels B and C, and the radial shaft a, gears G and H, and the connecting-link F, combined with the shaft D and the grinding-wheel E, and all arranged to operate substantially as and for the `purpose set forth.

.BozIL 2s. ROY.

Witnesses:

JonN E, CRANE, Cass. E. Smm. 

